Praesensa end-of-line device

This end‑of‑line device is a reliable solution for
loudspeaker line integrity supervision, which is a
requirement for emergency sound systems.
It is connected at the end of a loudspeaker line, after
the last loudspeaker of a series of looped-through
loudspeakers.
It communicates with the PRAESENSA amplifier
channel driving that loudspeaker line, to confirm the
integrity of the line.
Where impedance measurements may not detect a
disconnected loudspeaker, depending on the number
of connected loudspeakers and cable type, or report
false faults, the end-of-line device provides a
superior solution to report the correct status of the
loudspeaker line.
The enclosure size is compatible with the mounting
provisions in most Bosch loudspeakers for
supervision boards or devices. It can also be reduced
in size to fit most cable junction boxes.